{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{3}{c}}
\toprule
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}\\
                    &\multicolumn{1}{c}{Composite}&\multicolumn{1}{c}{Domestic}&\multicolumn{1}{c}{Imported}\\
\midrule
Cushing, OK WTI Spot Price FOB (Dollars per Barrel)&        0.87\sym{***}&        0.80\sym{***}&        0.90\sym{***}\\
                    &     (0.060)         &     (0.044)         &     (0.069)         \\
{t-1}$              &        0.16\sym{*}  &        0.21\sym{***}&        0.12         \\
                    &     (0.094)         &     (0.069)         &      (0.11)         \\
{t-2}$              &      -0.010         &      0.0080         &      -0.017         \\
                    &     (0.098)         &     (0.071)         &      (0.12)         \\
{t-3}$              &      -0.038         &      -0.036         &      -0.042         \\
                    &     (0.099)         &     (0.075)         &      (0.12)         \\
{t-4}$              &       0.051         &       0.056         &       0.043         \\
                    &     (0.059)         &     (0.045)         &     (0.069)         \\
Constant            &       -2.74\sym{***}&       -2.60\sym{***}&       -2.85\sym{***}\\
                    &      (0.22)         &      (0.18)         &      (0.26)         \\
\midrule
Observations        &         388         &         388         &         388         \\
R-Squared           &        0.99         &        0.99         &        0.99         \\
\bottomrule
\multicolumn{4}{l}{\footnotesize Dependent variables in Cols 1 - 3 are the average nationwide refinery costs of input from all, domestic and imported sources, respectively.}\\
\end{tabular}
}
